Pregled bibliografske jedinice broj: 359460
Flow Injection Analysis with Two Parallel Detectors : Potentiometric and Spectrophotometric Determination of Thiols and Ascorbic Acid in Mixture
Flow Injection Analysis with Two Parallel Detectors : Potentiometric and Spectrophotometric Determination of Thiols and Ascorbic Acid in Mixture // Journal of chemical metrology, 2 (2008), 1-12 (podatak o recenziji nije dostupan, članak, znanstveni)
CROSBI ID: 359460 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Flow Injection Analysis with Two Parallel Detectors : Potentiometric and Spectrophotometric Determination of Thiols and Ascorbic Acid in Mixture
Autori
Martinović, Anita ; Cerjan Stefenović, Štefica ; Radić, Njegomir
Izvornik
Journal of chemical metrology (1307-6183) 2
(2008);
1-12
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Flow-injection analysis; Thiols; Ascorbic acid; Potentiometry; Spectrophotometry
Sažetak
One flow injection analysis (FIA) procedure for the successive potentiometric and spectrophotometric determination of ascorbic acid (AA) and thiols (cysteine, cys ; N-acetyl-L-cysteine, NAC ; penicillamine, pen ; glutathione, glu) in mixtures has been described. The potentiometric FIA signal is based on the reaction of formation the sparingly soluble salts, RSAg, between thiols (designated also as RSH) and Ag+ ions. Ascorbic acid has had no influence on potentiometric signal at any experimental concentration. The spectrophotometric FIA signal is based on redox-reaction of chosen compounds with 1, 10-phenanthrolineiron(III) complex. For potentiometric determination of thiols and spectrophotometric determination of selected compounds a rectilinear calibration graphs were obtained.
Izvorni jezik
Engleski
Znanstvena područja
Kemija, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
011-0000000-3217 - Određivanje tiola primjenom potenciometrijskih senzora i spektroskopije (Radić, Njegomir, MZOS ) ( CroRIS)
125-1253092-3004 - Procesi ionske izmjene u sustavu kvalitete industrijskih voda (Bolanča, Tomislav, MZOS ) ( CroRIS)
Ustanove:
Kemijsko-tehnološki fakultet, Split,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb
